from rest_framework import filters
from rest_framework.generics import GenericAPIView,ListAPIView
from .models import  SKU
from . import serializers
from .serializers import SKUIndexSerializer
from drf_haystack.viewsets import HaystackViewSet
class HotSkuListView(ListAPIView):
    serializer_class = serializers.HotSkuListSerializer

    #关闭分页
    pagination_class = None

    def get_queryset(self):
        category_id = self.kwargs.get("category_id")
        skus =  SKU.objects.filter(category_id=category_id).order_by("-sales")[:3]
        return skus

    # def get(self,request,category_id):
    #     #1,获取对象
    #     queryset = self.get_queryset()
    #
    #     #2,获取序列化器
    #     serializer = self.get_serializer(instance=queryset,many=True)
    #
    #     #3,返回数据
    #     return Response(serializer.data)

class SkuListView(ListAPIView):

    serializer_class = serializers.HotSkuListSerializer

    #设置过滤后端,排序字段
    filter_backends = (filters.OrderingFilter,)
    ordering_fields = ('create_time', 'price',"sales")

    def get_queryset(self):
        #1,获取分类编号
        category_id = self.kwargs.get("category_id")

        #2,根据分类编号查询数据
        skus = SKU.objects.filter(category_id=category_id)

        return skus

class SKUSearchViewSet(HaystackViewSet):
    """
    SKU搜索
    """
    #1,数据集
    index_models = [SKU]

    #2,序列化器
    serializer_class = SKUIndexSerializer



# 胡尚斌  的  上传